Optic nerve tumor: An optic nerve melanocytoma is a tumor made up of melanocytes and melanin. These tumors are typically a benign; they can grow, but rarely transform into a malignancy.Wallerian degeneration: Wallerian degeneration is a process that results when a nerve fiber is cut or crushed, in which the part of the axon separated from the neuron's cell body degenerates distal to the injury.Trauma and Wallerian Degeneration, University of California, San Francisco This is also known as anterograde or orthograde degeneration.Neuroregeneration: Neuroregeneration refers to the regrowth or repair of nervous tissues, cells or cell products. Such mechanisms may include generation of new neurons, glia, axons, myelin, or synapses.Axon guidance: Axon guidance (also called axon pathfinding) is a subfield of neural development concerning the process by which neurons send out axons to reach the correct targets. Axons often follow very precise paths in the nervous system, and how they manage to find their way so accurately is being researched.Gross pathology: Gross pathology refers to macroscopic manifestations of disease in organs, tissues, and body cavities. The term is commonly used by anatomical pathologists to refer to diagnostically useful findings made during the gross examination portion of surgical specimen processing or an autopsy.Age-Related Eye Disease Study: The Age-Related Eye Disease Study (AREDS) was a clinical trial sponsored by the National Eye Institute, one of the National Institutes of Health in the United States.A Randomized, Placebo-Controlled, Clinical Trial of High-Dose Supplementation With Vitamins C and E, Beta Carotene, and Zinc for Age-Related Macular Degeneration and Vision Loss.Sciatic nerve: The sciatic nerve (; also called ischiadic nerve, ischiatic nerve) is a large nerve in humans and other animals. It begins in the lower back and runs through the buttock and down the lower limb.Endoneurium: The endoneurium (also called endoneurial channel, endoneurial sheath, endoneurial tube, or Henle's sheath) is a layer of delicate connective tissue around the myelin sheath of each myelinated nerve fiber. Its component cells are called endoneurial cells.Nerve fiber layer: The retinal nerve fiber layer (nerve fiber layer, stratum opticum, RNFL) is formed by the expansion of the fibers of the optic nerve; it is thickest near the porus opticus, gradually diminishing toward the ora serrata.Degenerative disc diseaseBobby Crush: Bobby Crush (born Robert Nicholas Crush, 23 March 1954) is an English pianist, songwriter, actor and television presenter, originally from Leyton in East London.Nerve biopsyNerve blockElectroneuronography: Electroneuronography or electroneurography (ENoG) is a neurological non-invasive test that was first described by Esslen and Fisch in 1979 and is used to examine the integrity and conductivity of a peripheral nerve. It consists of a brief electrical stimulation of the nerve in one point underneath the skin, and at the same time recording the electrical activity (compound action potentials) at another point of the nerve's trajectory in the body.Neurotmesis: Neurotmesis (in Greek tmesis signifies "to cut") is part of Seddon's classification scheme used to classify nerve damage. It is the most serious nerve injury in the scheme.Median nerve: The median nerve is a nerve in humans and other animals in the upper limb. It is one of the five main nerves originating from the brachial plexus.Martin-Gruber Anastomosis: The Martin-Gruber Anastomosis (or Martin-Gruber Connection) is a communicating nerve branch between the median nerve and the ulnar nerve in the forearm. It is the most common anastomotic anomaly that occurs between these two nerves.Frontotemporal lobar degeneration: Frontotemporal lobar degeneration (FTLD) is a pathological process that occurs in frontotemporal dementia. It is characterized by atrophy in the frontal lobe and temporal lobe of the brain, with sparing of the parietal and occipital lobes.Superior cluneal nerves: The superior cluneal nerves innervate the skin of the upper part of the buttocks. They are the terminal ends of lateral rami of the posterior rami of lumbar spinal nerves (L1, 2, 3).Trigeminovascular system: The trigeminovascular system consists of neurons in the trigeminal nerve that innervate cerebral blood vessels. It has been hypothesized that the trigeminovascular system may be involved in some types of headaches.Retinal regeneration: Retinal regeneration deals with restoring retinal function to vertebrates so impaired.Sacral anterior root stimulator: An implantable medical device enabling patients with a spinal cord lesion to empty their bladders.Diaphragm pacing: == Introduction ==Intervertebral disc damage and spaceflight: Astronauts have expressed an increased incidence of back pain during spaceflight and herniated intervertebral discs (IVD) have been diagnosed upon return of Skylab and Shuttle spaceflight participants.Cranial nerve examinationTriangular interval: The triangular interval (also known as the lateral triangular space,Photo at tufts.edu lower triangular space, and triceps hiatus) is a space found in the axilla.Improved Samba MahsuriEsthesiometer: An esthesiometer (British spelling aesthesiometer) is a device for measuring the tactile sensitivity of the skin (or mouth, or eye, etc.).Inferior alveolar nerve anaesthesia: Inferior alveolar nerve block (abbreviated to IANB, and also termed inferior alveolar nerve anesthesia or inferior dental block) is a nerve block technique which induces anesthesia (numbness) in the areas of the mouth and face innervated by one of the inferior alveolar nerves which are paired on the left and right side. These areas are the skin and mucous membranes of the lower lip, the skin of the chin, the lower teeth and the labial gingiva of the anterior teeth, all unilaterally to the midline of the side on which the block is administered.Inferior longitudinal fasciculus: The inferior longitudinal fasciculus connects the temporal lobe and occipital lobe, running along the lateral walls of the inferior and posterior cornua of the lateral ventricle.Compound muscle action potential: The compound muscle action potential (CMAP) or compound motor action potential is an electromyography investigation (electrical study of muscle function).Branch of glossopharyngeal nerve to carotid sinus: The branch of glossopharyngeal nerve to the carotid sinus (Hering's nerve) is a small nerve in the neck, that innervates the carotid sinus and the carotid body.Neuropathy, ataxia, and retinitis pigmentosa